Constbtjcting- the flues of cooking-stoves



E.- FERREN.

Cooking Stove.

Patented Nov. 12, 1839;

PETERS. Phuloljlhcgnpher, wnhin iuu, D. u

UNITED STATES PATENT OFFICE.

EBENEZER FERREN, OF HAVERHILL, NEW HAMPSHIRE.

CONSTRUCTING THE FLUES OF COOKING-STOVES.

Specification of Letters Patent No. 1,408, dated November 12, 1839.

To all whom it may concern:

Be it known that I, EBENEZER FERREN, of Haverhill, in the county of Grafton and State of New Hampshire, have invented certain Improvements in the Manner of Constructing Cooking-Stoves; and I do hereby declare that the following is a full and exact description thereof.

The general form of my cooking stove is the same with that of many others now in use, consisting essentially of a fire chamber, with an oven in the rear thereof, as will appear from reference to Figure 1, in the accompanying drawing, in which A, A, are the bottom plate, sliding cover, and ash pit of the furnace, or fire chamber; B, B, the body thereof, and B, B, doors for the supply of fuel. C, C, are openings immediately over the fire for the reception of cooking utensils. D, is a larger opening for the same purpose, which opening is situated in part over the oven E, and in part over the fire chamber; the arrangement of the respective parts being such that the whole of the heated air from the furnace may be made to pass directly under a cooking utensil at D, or may be made first to circulate around the four sides of the oven by an arrangement of fiues, and the action of a valve, or damper, constructed and operating in a way to be presently described. When the draft is made to circulate around the oven, it does so indirect contact with the four plates forming its front and back, and its bottom and top,-and the stove is so constructed that the'direct heat from the back plate of the fire chamber does not, in any degree, influence, so as unduly to increase, that of the fore part of the oven. E, is the door of the oven, the dotted lines around which show the situation of the flues surrounding the oven, which are more distinctly represented in the next figure' S, S, is the top plate, 1n one continuous piece, and S, the smoke pipe, or exit flue.

Fig. 2, represents a section of the stove made by a vertical plane passing longitud1- nally from the front to the back, through the middle thereof.

In all the figures where like parts occur, they are designated by the same letters of reference.

My stove is divided into two sections, the fire chamber, and the oven section; between which sections there is a free space, open to the air of the room, excepting at the upper v i of the stove.

plate of the fire chamber, which I usually with the horizon. G, is the front plate of the oven-section of my stove, H, being the open space between the fire chamber and the back, or oven, section, the side and top plates of the stove serving to unite these portions to each other. The plates F, and G, may be cast in one piece, but if cast separately they are to be firmly connected to gether at their line of junction atG. The bottom plates A of the fire chamber, and K, of the oven section, are in separate pieces, leaving the space between them, represented by the dotted line H, (Fig. 1) entirely open. I, I, I, is the flue surrouding the oven, the exterior of which flue consists of the front plate G, the bottom plate K, the back plate L, and the top plate M. This latter, however, does not constitute the top plate of the stove, but is intermediate between the top plate of the stove S, S, and the top plate of the oven N; the oven flue I, being below it, and the direct flue O, 0, from the fire to the exit pipe, being, above it. The front oven flue I communicates with the flue, or space, 0, O, by means of a short, inclos'ed flue a, occupying about one half of the width The situation and construction of this short flue will be seen distinctly in Fig. 3, which is a horizontal section of the stove at the upper surface of the plate N; a, a, a, and G, being the plates which form this short flue, the upper edges of which are flush with the surface of the plate M, Figs. 2, and 4. The plate N, is so formed as that its portion N, N, shall embrace the ends of the flue a, a, and connect them with part, where the draft passes from the fire chamber to the oven section. F, is the back the plates G, and F, (Fig. 2) at their junction with each other; this plate by being extended up at G, forms the front portion of the flue a, a, a, as shown clearly in Fig. 5, which is a sectional view across the stove at the back of the fire chamber, and which will be presently described.

Fig. 4;, is a top view of the stove, the top fore end'o-f the'valve, or shutter, Q,, which valve plate is represented as in contact with:

the partition P, P, leaving the short flue a, a, open, in which position it cuts off all direct communication between the fire chamber and the space 0, 0, above the plate M; and the dra-ft'from thefire is then compelled to pass entirely around the oven, in away to be presently explained. The part P, P, of thepartition extends over the fire chamber, and when the valve Q, is drawn back so as to'cover the flue a, a, its front edge will standin the situation of the dotted lines 6,- b, compelling the draft to pass directly above the plate M, to the smoke, or exit, pipeS, (Fig.1.) The plate M, extends farther forward than the plate N, to admit of sutficient play to the valve Q. The dotted lines N, N, show the place of the front edge of the: plateN. 0, 0, is therod forwor king this valve. Instead ofa slid ing valve'made in the form shown at Q, a hinged valve, or shutter, may be used "in which case it will be madexof such length and width as to cover the opening of the flue a, a, and it will behinged so'as to turn on the edge of the front plate, Gr, of said flue. P, P, will, in this case, be'made rectangular, and of such form and size as to be closed by the valve, when the'flue a, a, is'to be left' I open.

Fig, 5, is a section across the stove in front, and in the plane, of the back plate F, .of thefire chamber, which plate extends up at G, so vas to constitute thefro-nt plate of the flue a, a. one on each side of the flue 0;,0, andbetween the platesM, and N; :said openings leading into, and j forming oven flue I, Fig.2. I I

From the foregoing description, thefmaiie nor in which this stove is made to operate will be readily understood. When the'valve Q, is: in contact with thefp'artitiojn P, P;

. andthe flue a, a, is,consequently, left open, the heated air from the fire will pass through the openings T, T, on each side o-fthe short flue a, 0;, in tothe flue I, and through 'I I and I at the top of which latter, it will be conducted through the short flue as, a, into the space O, O, and

The recess formed by the partition- T, T, are twogopenings a part of, the

thence to the exit p-ipe S. 13y this arrange- ;ment of the fines, the oven, when in use,

has four of its sides, fully, and equally, exposed to the action of the heated air. 7

In describing this stove, I have referred to certain parts thereof which'resemble, or

are similar -to, j.thoser employed in other cooking stoves, and which parts I do not,

therefore, intend -to claim as constituting.

1. any part of my invention. 'I- do not claim the employment of .an intermediate plate which like that marked M, M, covers an oven flue, andformsthe'bottom of an open;

ingthrough'which a direct draft from the fire chamber may be established by the opening of a valve;pnor do I claim the mere carryingofthe heated; air around the four sides of an oven; but I v I do claim' The arrangement of the respective vparts of my stove by-which I effect the objects in view ma more perfectmanner thanhas been done in any ofthe th SQ hitherto in vented-that is to say, I' claim, in y a stove having an-open spacebetween the fire chamher and. thejoven, the manner of combining the shortc-flue-a, a, and the openings T, T, so as to. admit thefheated airlfrom the fur nace, or fire chamben'intothej upper, oven. flue thr'ough openings such as those ;represented at T, T,-'on either-sideiof theyshort flue. a, a, situated and operating as f-hereindescribed the heated air passing. firstfover,

then back "of, under, ;and up, the front of,

the oven and being in contact, through its] whole course, with. the plates formingfthe whole being constructed and arranged substantially in the manner described;

" BENEZER EERREN.

.witnesse'si p V is GREENLEAEL; BW ATL JONATI'IAN PO Jrinterior. ofthe oven, passing thence through a the 'above named short flue, into the space f leading to the exit pipe; said short fluefbeing furnished, also, with a valve,forshutter, such as is herein described, for the purpose t,

of establishing the, current {of heated air aroundthe oven. fiues, i0r of admitting ,it to pass directly'under the cooking utensils in; thetop plate, andto the 'exlt pi pe g the 

